Last Updated: December 29, 2025
Wisconsin's rivers are experiencing a dynamic period with varied streamflow conditions, presenting a mixed bag for water enthusiasts. Notably, the Fox River at Oshkosh is reporting an elevated current streamflow of 5370 cubic feet per second (cfs), which is 29.28% above normal, potentially signaling a risk for flooding in the surrounding areas, including Oshkosh. Contrastingly, the Wisconsin River at Wisconsin Rapids shows a decreased flow at 3170 cfs, which is 20.3% below normal, possibly affecting recreational activities. Moreover, the significant rise in gage height to 578.74 feet on the Fox River at the Oil Tank Depot in Green Bay indicates an unusual condition that might impact the city of Green Bay. Water users such as kayakers and anglers should stay informed about these fluctuations, particularly on popular whitewater trails like those on the Bois Brule River, which is currently at 183 cfs, 19.18% of the typical flow.
In southern Wisconsin, the Root River at Racine saw a dramatic 24-hour increase in streamflow of 149.65%, which could influence water conditions in Racine. The Mississippi River at Prescott is also noteworthy with a substantial 13700 cfs flow, though it's down 14.91% from the norm, which can affect boating and commerce. On the other hand, the Trempealeau River at Dodge is experiencing an increase in streamflow to 953 cfs, 61.26% above normal, suggesting potential localized flooding. Such variations underscore the importance of monitoring streamflows for safety and planning. Residents and visitors to areas like St. Croix Falls and Danbury should note the increased flow in the St. Croix River, which is running higher than average, while paddlers in the central and northern regions should be wary of lower-than-average flows on the Wisconsin River near Merrill and the Flambeau River near Bruce, which may impact river navigation and the health of these ecosystems.
Wisconsin is characterized by a humid continental climate with distinct seasonal variations in temperature and precipitation. Major rivers include the Mississippi, St. Croix, Wisconsin, and Menominee, which are fed by tributaries that drain into the Great Lakes or the Mississippi River. The region also contains numerous reservoirs and dams, including the Wisconsin River system and the Chippewa River. Hydrology in Wisconsin is affected by snowpack, which can lead to spring flooding, and by changes in land use and agricultural practices. In recent years, the state has experienced an increase in extreme precipitation events, leading to more frequent flooding and erosion. Overall, the state's hydrology is complex and influenced by multiple factors, including climate, topography, and human activity.
Residents across Wisconsin are urged to exercise extreme caution as multiple Winter Storm Warnings are in effect today. Blizzard conditions with additional snow accumulations of 1 to 3 inches and winds gusting up to 55 mph are creating hazardous whiteout conditions, particularly in Door County. Plan on slippery roads and significantly reduced visibility, impacting morning and evening commutes in counties including Waushara, Menominee, Shawano, Waupaca, Vilas, Marathon, Portage, Wood, Lincoln, Oneida, Florence, Forest, Northern Marinette, Langlade, Northern Oconto, Manitowoc, Kewaunee, Calumet, Winnebago, Brown, Outagamie, Southern Marinette, and Southern Oconto. Strong winds could cause tree branches to fall and lead to sporadic power outages. Avoid travel if possible and prepare for potential emergency situations.